hostname -I | tr ' ' '\n' | grep '[0-9]' | grep -v '127\.0\.0\.'
ifconfig | grep "inet addr" | cut -f 2 -d ":" | cut -f 1 -d " " | grep -v '127\.0\.0\.'
ip addr | grep -v 127.0.0 | perl -n -e 'if (m/inet ([\d\.]+)/g) { print $1 }'
permit 允许 deny 拒绝 permit 匹配 deny 不匹配
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ip addr | grep -v 127.0.0 | perl -n -e 'if (m/inet ([\d\.]+)/g) { print $1 }'
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